/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import Core.Customer;
import Core.Customers;
import Core.Util;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author vietean
 */
public class Login extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        Customers customerTbl = Util.getCustomerTbl(getServletContext().getRealPath("/Data/Customers.xml"));
        Customer loginCustomer = null;
        try {
            /* TODO output your page here. You may use following sample code. */
            String Username = request.getParameter("Username");
            String Password = request.getParameter("Password");
            if (Username != null && Password != null) {
                loginCustomer = customerTbl.getLoginCustomer(Username, Password);
            }
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet Login</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet Login at " + request.getContextPath() + "</h1>");
            out.println("<form method='POST'>");
            if (Username != null && Password != null) {
                if( loginCustomer != null  )
                {
                    out.println("Xin chao:" + loginCustomer.getFullname());
                    out.println("Password:" + loginCustomer.getPassword());
                }
                else 
                {
                    out.println("Wrong username or password!!");
                }
            }

            out.println("<table>"
                    + "<tr><td>Username</td><td><input name='Username' /></td></tr>"
                    + "<tr><td>Password</td><td><input name='Password' /></td></tr>"
                    + "<tr><td></td><td><input type='Submit' value='Login' /></td></tr>"
                    + "</table>");
            out.println("</form>");
            out.println("</body>");
            out.println("</html>");
                
        } finally {
            out.close();
        }

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
